package com.atguigu.gulimall.product.service.impl;

import com.atguigu.gulimall.product.entity.AttrEntity;
import com.atguigu.gulimall.product.service.AttrService;
import com.atguigu.gulimall.product.vo.AttrGroupWithAttrVO;
import com.atguigu.gulimall.product.vo.SkuItemVo;
import com.atguigu.gulimall.product.vo.SpuItemBaseAttrGroupVo;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;

import com.atguigu.gulimall.product.dao.AttrGroupDao;
import com.atguigu.gulimall.product.entity.AttrGroupEntity;
import com.atguigu.gulimall.product.service.AttrGroupService;
import org.springframework.util.StringUtils;


@Service("attrGroupService")
public class AttrGroupServiceImpl extends ServiceImpl<AttrGroupDao, AttrGroupEntity> implements AttrGroupService {
    @Autowired
    AttrService attrService;
    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<AttrGroupEntity> page = this.page(
                new Query<AttrGroupEntity>().getPage(params),
                new QueryWrapper<AttrGroupEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    public PageUtils queryPage(Map<String, Object> params, Long catelogId) {
        String key = (String) params.get("key");
        //select * from pms_attr_group where catelog_id=? and (attr_group_id=key or attr_group_name like %key%)
        QueryWrapper<AttrGroupEntity> attrGroupEntityQueryWrapper = new QueryWrapper<AttrGroupEntity>();

        if(!StringUtils.isEmpty(key)){
            attrGroupEntityQueryWrapper.and((obj)->{
                obj.eq("attr_group_id",key).or().like("attr_group_name",key);
            });
        }

        if(catelogId==0){

            IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),
                    attrGroupEntityQueryWrapper);
            return new PageUtils(page);
        }else{
            attrGroupEntityQueryWrapper.eq("catelog_id",catelogId);
            IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),
                    attrGroupEntityQueryWrapper);
            return new PageUtils(page);
        }
    }

    @Override
    public List<AttrGroupWithAttrVO> getAttrGroupByCatlogId(Long catelogId) {
        //根据分类id查出所有分组及这些组里的属性
        //查询分组信息
        List<AttrGroupEntity> groupEntities = this.list(new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId));
        //查询所有属性
        List<AttrGroupWithAttrVO> vos = groupEntities.stream().map((group) -> {
            AttrGroupWithAttrVO vo = new AttrGroupWithAttrVO();
            BeanUtils.copyProperties(group,vo);
            List<AttrEntity> relationAttr = attrService.getRelationAttr(group.getAttrGroupId());
            vo.setAttrs(relationAttr);
            return vo;
        }).collect(Collectors.toList());
        return vos;
    }

    @Override
    public List<SpuItemBaseAttrGroupVo> getAttrGroupWithAttrsBySpuId(Long spuId, Long catalogId) {
        //查出当前spuid对应的所有属性的分组信息 以及当前分组下所有属性对应的值
        List<SpuItemBaseAttrGroupVo> vos = this.baseMapper.getAttrGroupWithAttrsBySpuId(spuId,catalogId);
        return vos;
    }

}